Get current RotationAngle while Animation is running on Android -

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i'm rotating imageview using animation defined xml file.

    <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"     android:shareinterpolator="false" >     <rotate         android:interpolator="@android:anim/linear_interpolator"         android:pivotx="50%"         android:pivoty="50%"         android:fromdegrees="0"         android:todegrees="90"         android:fillafter="true" />     </set>

although imageview has getrotation() method , returns first value has been set image object.

is there anyway current rotation degrees using xml animation? if not, should best way go it?

public class customimageview extends imageview {      private objectanimator rotationanimator;      public customimageview(context context) {         super(context);     }      public customimageview(context context, attributeset attrs) {         super(context, attrs);     }      public customimageview(context context, attributeset attrs, int defstyleattr) {         super(context, attrs, defstyleattr);     }      @override     public void setrotation(float rotation) {         super.setrotation(rotation);         //     }      public synchronized void startanimation(int animationduration) {          if (rotationanimator == null || !rotationanimator.isrunning()) {             keyframe kf0 = keyframe.offloat(0f, 0f);             keyframe kf2 = keyframe.offloat(0.5f, 180f);             keyframe kf1 = keyframe.offloat(1f, 360f);              propertyvaluesholder pvhrotation = propertyvaluesholder.ofkeyframe("rotation", kf0, kf1, kf2);             rotationanimator = objectanimator.ofpropertyvaluesholder(this, pvhrotation);             rotationanimator.setrepeatcount(objectanimator.infinite);             rotationanimator.setinterpolator(new linearinterpolator());             rotationanimator.setduration(animationduration);             rotationanimator.start();         }         else {             // running         }     }

version 2, since having problems

public class customimageview extends imageview {      private objectanimator rotationanimator;     private float myrotation;      public customimageview(context context) {         super(context);     }      public customimageview(context context, attributeset attrs) {         super(context, attrs);     }      public customimageview(context context, attributeset attrs, int defstyleattr) {         super(context, attrs, defstyleattr);     }      public void setmyrotation(float rotation) {         this.myrotation = rotation;         log.d("customimage", "rotation: " + rotation);         invalidate();     }      public synchronized void startanimation(int animationduration) {          if (rotationanimator == null || !rotationanimator.isrunning()) {             keyframe kf0 = keyframe.offloat(0f, 0f);             keyframe kf2 = keyframe.offloat(0.5f, 180f);             keyframe kf1 = keyframe.offloat(1f, 360f);              propertyvaluesholder pvhrotation = propertyvaluesholder.ofkeyframe("myrotation", kf0, kf1, kf2);             rotationanimator = objectanimator.ofpropertyvaluesholder(this, pvhrotation);             rotationanimator.setrepeatcount(objectanimator.infinite);             rotationanimator.setinterpolator(new linearinterpolator());             rotationanimator.setduration(animationduration);             rotationanimator.start();         }         else {             // running         }     }      public synchronized void stopanimation() {         if (rotationanimator != null) {             rotationanimator.cancel();             rotationanimator = null;         }     }      public synchronized boolean getanimationrunning() {         return rotationanimator != null && rotationanimator.isrunning();     }      @override     protected void ondraw(canvas canvas) {         canvas.rotate(myrotation, getwidth() / 2.0f, getheight() / 2.0f);          super.ondraw(canvas);     } }

sample logcat output:

04-22 22:48:55.475  16341-16341/animation.example.com.animationdemo d/customimage﹕ rotation: 358.44 04-22 22:48:55.490  16341-16341/animation.example.com.animationdemo d/customimage﹕ rotation: 0.48000813 04-22 22:48:55.505  16341-16341/animation.example.com.animationdemo d/customimage﹕ rotation: 2.4 04-22 22:48:55.525  16341-16341/animation.example.com.animationdemo d/customimage﹕ rotation: 4.44

i have packed code simple project: link


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